I take this in addition to vitamin C tablets (1000 mg each time). Before I started doing that, high doses of Vitamin C over time (even containing the relevent flavonoids to aid absorption) resulted in bleeding gums and bruising, which are signs of lack of vitamin C! That condition cleared up when I added bioflavonoids to my daily regimen.

I take this in conjunction with vitamin C crystals. Citrus bioflavonoids really helps in the vitamin C absorption. Great for skin and overall well-being! If this review was helpful to you please click "YES" below. See more reviews on my profile!